According to Robert Cialdini, Professor of Psychology and author of Influence: The Psychology of Persuasion, both situations demonstrate the power of active commitment.

FORBES: Persuading People to Keep Appointments

"This mission represents the power of teamwork, commitment and exploration, " the commander said in a radio call to launch controllers moments before lift-off.

BBC: Shuttle Endeavour launches one last time

Mr Koizumi had won power last year because of his commitment to reform.

ECONOMIST: Too weak to work? | The